Pith Number

pith:QQPSZXVT

pith:2011:QQPSZXVTKEOD4UKUFO655KAJLG

not attested not anchored not stored refs pending

Janus Black Holes

Dongsu Bak, Michael Gutperle, Romuald A. Janik

arxiv:1109.2736 v2 · 2011-09-13 · hep-th · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQPSZXVTKEOD4UKUFO655KAJLG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:00:33.789849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

841f2cdeb3511c3e51542bbddea80959a2d3b360cd8726d72270db32b8c55091

Aliases

arxiv: 1109.2736 · arxiv_version: 1109.2736v2 · doi: 10.48550/arxiv.1109.2736 · pith_short_12: QQPSZXVTKEOD · pith_short_16: QQPSZXVTKEOD4UKU · pith_short_8: QQPSZXVT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QQPSZXVTKEOD4UKUFO655KAJLG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 841f2cdeb3511c3e51542bbddea80959a2d3b360cd8726d72270db32b8c55091

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91cc5ef5bcfd680b66d97327cb70a16c25ec6cb0dc0ae57c846b6e017f5ac7dc",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2011-09-13T10:24:22Z",
    "title_canon_sha256": "5e996f700e2d4cc3b384c7a7d8463a86a207e29e9866732b6640ef2433ad39a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2736",
    "kind": "arxiv",
    "version": 2
  }
}